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Modeling of a Cross Flow Heat Exchanger. Cross Flow Heat Exchanger Experiment
By Andres Rodriguez Abstract The design project of ...
Submitted by arod661 on February 10, 2006
Category: Science
Words: 1704 | Pages: 7
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Cross Flow Heat Exchanger Experiment
By
Andres Rodriguez
Abstract
The design project of the group was to create an experiment for Thermo/Fluids Laboratory. The experiment will help aide the students in relating pressure drop and heat transfer in a cross flow heat exchanger. The experiment consists of three cross flow heat exchangers (bare inline, bare staggered, and finned staggered) that will cool hot water with current fan in the Laboratory. Optimal flow rates, pressure and temperature drops were calculated for each case. Currently, a Lab View system is in process of being completed that will verify calculations made and give the students a better understanding of what is happening. So far there is one heat exchanger complete and two in processes. The heat exchanger will be operated in an ambient environment along with the attachment ducts.
Description of Work
This semester began with attempting to sort out the instruments purchased from Mamac Systems. Last semester's order was reviewed in greater detail and it was found that the instruments were incorrectly order due to many factors that involved an unclear website and an inexperienced student, which led to purchasing sensors without transducers that output a voltage. The majority of the equipment will have to be return and replace.
The drawings of the shell of the heat exchanger (shell of exchanger is the same for each configuration, and only vary in way the tubes are aligned) were sent out to Northridge's Plant Management and after a few meetings to clarify drawings the shell of the inline configuration was created. The shell was made without the through
holes needed for the tubes, which was done by the group in the laboratory. Twenty eight 14" copper pipes were cut and solder to 90 degree elbows, which were modified to fit our arrangement. A ΒΌ" of the face of the elbows were...
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